Enabling ipv6 creates a lot of routing problems and networking issues on my network, so it remains off and NAT with upnp is used instead (and sometimes tunnels

Enabling ipv6 creates a lot of routing problems and networking issues on my network, so it remains off and NAT with upnp is used instead (and sometimes tunnels which provide ipv6). ISPs and home routers need to do a better job handling ipv6 traffic as well and end user devices need to fix bugs with implementations.